Culvert.



G. W. STORMS. GULVBR-T. ABPLIOATION FILED NOV. 7, 1910.

Patented June13,1'91-1.-

GEORGE W. STORIVIS, 0F LOUISVILLE,

KENTUCKY.

CULVERT.

Specification of Letters Batent.

Patented June 13, 1911.

Application filed November 7, 1910; Serial no. 591,176.

To all whom it may concern: 7

Be it known that I, GEORGE W. Sromrs, a citizen of the United States, and a resident of Louisville, in the county of Jcfierson and State of Kentucky, have invented certain new and useful Improvements in Culverts, of which the following is a specification.

My invention relates to culverts used for drains, and particularly to the type of coupler made of corrugated sheet metal, and has for its object the provision of a culvert formed in two main horizontal portions, of which the top portion is formed of sheet metal and semi-cylindrical to form an archto uphold the weight of the earth when in position, While the bottom portion is formed of cast iron and may be fiat or curvedin cross-section, as desired, with upstanding flanges along its side edges and formed with corrugations to receive the lower edges of the top section.

My invention will be described in detail hereinafter and illustrated in the accompanying drawings, in which-.-

-Figure 1 1s a View in perspective of my improved culvert, partly laid, and 'showing the bottom portion flat; Fig. 2, a side View of a top'section; and Fig. 3, a side View of a fiat bottom section.

In. the drawings similar reference characters indicate corresponding parts throughout all of the views.

My improved culvert is constructed? of two horizontal portions. The top portion 1 is formed of sheet-metal with transverse corrugations 2 and made in sections of any suitable length, and when in position the ends overlap to form the joints. The bottom portion ismade of cast-iron or other suitable material, and, as shown in Figs. 1 and 3, is formed of sections 3, equalin length to the full length sections of the top portion and provided with upstanding flanges 4 that are corrugated to lit snugly the corrugations in the top sections when in position. One end of each section 3 is formed with an overhanging lip 5, while the other end is reduced in thickness, as shown at 6, so that-when laid end to end the lip 5 and reduced part 6 overlap to form atight joint that may be cemented, if desired, to form a water-tight joint, though the use of cement is not'essential to satisfactory operation of my culvert in ordinary circumstances.

As it is usually desirable to have the top portion and the base or bottom portion brealc joints, I form the sections comprising the said top portion in half and full lengths,

so that by beginning and'ending the cul-.

verts with half-sections I succeed in forming the two portions-with-buokcn joints.

It will be apparent that' y my construction the more weight is. placed on the top portion the more securely will the two portions be heldv together at the joints formed by the side flanges of thebase sections. 7

'Having described my invention, what I claiin is' l A culvert comprising two horizontal portions, the bottom or base portion being flat and formed of sectionsmade of rigid Ina: terlal, one end of each section formed wlth an, overhanging hp and the other end with,

a portion reduced in thickness to engage the overhanging lip on the end of the adjoiningsection, upstanding corrugated flanges on the side cdgesof said base portion, and the top, portion formed of sections of transversely corrugated sheet-metal 'bent into arched conformation and engaging the corrugated flanges on the base sections, subst-antially as shown and described.

In witness whereof, I, have hereunto set my hand in presence of two subscribing witnesscs.

ononon w. STORMS.

Witnesses: I

AoonnnA GRAY, WM. (3. CAWTIION. 

